Compositions, methods, and systems for the synthesis and use of imaging agents
US-2025170282-A1 · May 29, 2025 · US
the other nitrogen atom being further doubly-bound to a carbon atom, e.g. guanylhydrazones
the other nitrogen atom being further doubly-bound to a carbon atom, e.g. guanylhydrazones · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C281/18 |
| Official title | the other nitrogen atom being further doubly-bound to a carbon atom, e.g. guanylhydrazones |
| Display label | the other nitrogen atom being further doubly-bound to a carbon atom, e.g. guanylhydrazones |
| Total patents | 48 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2017 | 7 |
| 2018 | 8 |
| 2019 | 5 |
| 2020 | 8 |
| 2021 | 4 |
| 2022 | 9 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Self-assembled active agents
US-2024373854-A1 · Nov 14, 2024 · US
Therapeutic compounds
US-12006294-B2 · Jun 11, 2024 · US
Antifungal compounds and methods of forming the same
US-11851391-B2 · Dec 26, 2023 · US
Compositions, methods, and systems for the synthesis and use of imaging agents
US-2022339303-A1 · Oct 27, 2022 · US
Methods for selecting phosphatase selective and non-selective phosphatase inhibitors
US-2022313628-A1 · Oct 6, 2022 · US
Robenidine analogs as potent antimalarials against drug-resistant plasmodium falciparum
US-2022267258-A1 · Aug 25, 2022 · US
Aminoguanidine hydrazones as retromer stabilizers useful for treating neurological diseases
US-2022213030-A1 · Jul 7, 2022 · US
Methods for selecting phosphatase selective and non-selective phosphatase inhibitors
US-11364211-B2 · Jun 21, 2022 · US
Inhibitors and their uses
US-11337941-B2 · May 24, 2022 · US
Inhibitors and their uses
US-11331286-B2 · May 17, 2022 · US
Reversible imine uv-absorbers
US-2022098146-A1 · Mar 31, 2022 · US
Self-assembled active agents
US-2022015367-A1 · Jan 20, 2022 · US
Self-assembled active agents
US-11166464-B2 · Nov 9, 2021 · US
Inhibitors and their uses
US-11154519-B2 · Oct 26, 2021 · US
Lipophilic guanidinium compounds for removal of oxyanions from aqueous solutions
US-11001554-B2 · May 11, 2021 · US
Benzylideneguanidine derivatives and therapeutic use for the treatment of protein misfolding diseases
US-10954198-B2 · Mar 23, 2021 · US
Compositions, methods, and systems for the synthesis and use of imaging agents
US-2020397927-A1 · Dec 24, 2020 · US
Inhibitors and their uses
US-2020297668-A1 · Sep 24, 2020 · US
Protective molecules against anthrax toxin
US-10730848-B2 · Aug 4, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C281/18?
- CPC C07C281/18 is the Cooperative Patent Classification code for “the other nitrogen atom being further doubly-bound to a carbon atom, e.g. guanylhydrazones.”
- How many patents are filed under CPC C07C281/18 (the other nitrogen atom being further doubly-bound to a carbon atom, e.g. guanylhydrazones)?
- Our database includes 48 publications tagged with this CPC code.
- Is patent activity under CPC C07C281/18 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).